The angle measures in a triangle are in the ratio 1: 3: 5. the longest side of the triangle measures 5 inches. what is the approximate perimeter of the triangle?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.